Tasks: 595 total, 1 running, 441 sleeping, 0 stopped, 3 zombie There are also a number of virtual machines - those spike from time to time in top as needed:Ĭode: top - 10:06:05 up 12 days, 23:53, 7 users, load average: 0.27, 0.55, 2.64 On a different system, Firefox is using about 10% of a CPU with spikes into the 90% range. On that system, no single process is using over 0.5% of a CPU. The machine is talking to itself.Īfter that, I check top and see hexchat isn't using any real CPU. Both those addresses are not public and cannot be accessed by any other systems. Localhost resolves to 127.0.0.1 and regulus resolves to 127.0.1.1 when on the same machine. BTW, localhost and regulus are the same system. Lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/114/gvfs Lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1000/gvfs Then I'd use lsof to track down the exact program using any specific port. Also like netstat -tulpn |grep LISTEN|grep -v 127 to see which ports are used by services on a system.

Some have many different options, so depending on what you want to see, you may want to add some options.

Use top, iotop, netstat, vmstat, and the free commands to get a quick look at what's using all the CPU, RAM, networking and disk I/O on any Unix system. I don't have any programs with that name on any of my systems. main is a typical name used by a programmer who is extremely new to C programming. Whatever 'main' is seems to be using about 40% of 1 CPU. People wanting to help cannot easily copy/paste relevant parts of an image, but we can highlight parts when text is used.Īlso, without seeing the actual command used, we don't know what program and program options are being used. Just copy/paste the text here, inside code tags. Please don't post images of text screens.

Ubuntu cpu memory monitor